title: Chemical headaches.
mesh_terms: D000818:Animals; D000431:Ethanol / Q000009:adverse effects; D006261:Headache / Q000139:chemically induced*; D006801:Humans; D009573:Nitrites / Q000009:adverse effects; D005996:Nitroglycerin / Q000009:adverse effects; D010627:Phenethylamines / Q000009:adverse effects; D012970:Sodium Glutamate / Q000009:adverse effects; D014439:Tyramine / Q000009:adverse effects
chemical_list: D009573:Nitrites; D010627:Phenethylamines; D000431:Ethanol; D005996:Nitroglycerin; D012970:Sodium Glutamate; D014439:Tyramine